                                                                    EXHIBIT 24.1

                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned officer
and director of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which
is about to file with the Securities and Exchange Commission, Washington, D.C.,
under the provisions of the Securities Act of 1933, as amended, a Registration
Statement on Form S-3 relating to the offering from time to time by the holders
thereof of up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Mark F. Bradley, John W. Conlon, and Charles R.
Hunsaker, or any of them, as his true and lawful attorneys-in-fact and agents,
each with full power of substitution and resubstitution, for him and in his
name, place and stead, in any and all capacities, to sign such Registration
Statement on Form S-3, any and all amendments (including post-effective
amendments) and documents and instruments related thereto and any request to
accelerate the effectiveness of such Registration Statement on Form S-3, and to
file the same, with any and all exhibits thereto, and other documents in
connection therewith, with the Securities and Exchange Commission and The Nasdaq
Stock Market, and grants unto each of said attorneys-in-fact and agents, and
substitute or substitutes, full power and authority to do and perform each and
every act and thing requisite and necessary to be done in and about the
premises, as fully to all intents and purposes as he might or could do in
person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 10th day of June, 2004.

                                 /s/ ROBERT E. EVANS
                                     -----------------------------------
                       Printed Name: Robert E. Evans



<PAGE>


                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned officer
and director of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which
is about to file with the Securities and Exchange Commission, Washington, D.C.,
under the provisions of the Securities Act of 1933, as amended, a Registration
Statement on Form S-3 relating to the offering from time to time by the holders
thereof of up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Robert E. Evans, John W. Conlon, and Charles R.
Hunsaker, or any of them, as his true and lawful attorneys-in-fact and agents,
each with full power of substitution and resubstitution, for him and in his
name, place and stead, in any and all capacities, to sign such Registration
Statement on Form S-3, any and all amendments (including post-effective
amendments) and documents and instruments related thereto and any request to
accelerate the effectiveness of such Registration Statement on Form S-3, and to
file the same, with any and all exhibits thereto, and other documents in
connection therewith, with the Securities and Exchange Commission and The Nasdaq
Stock Market, and grants unto each of said attorneys-in-fact and agents, and
substitute or substitutes, full power and authority to do and perform each and
every act and thing requisite and necessary to be done in and about the
premises, as fully to all intents and purposes as he might or could do in
person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 10th day of June, 2004.

                                  /s/ MARK F. BRADLEY
                                      ----------------------------------
                        Printed Name: Mark F. Bradley


<PAGE>


                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned director
of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which is about to
file with the Securities and Exchange Commission, Washington, D.C., under the
provisions of the Securities Act of 1933, as amended, a Registration Statement
on Form S-3 relating to the offering from time to time by the holders thereof of
up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Robert E. Evans, Mark F. Bradley, John W. Conlon, and
Charles R. Hunsaker, or any of them, as his true and lawful attorneys-in-fact
and agents, each with full power of substitution and resubstitution, for him and
in his name, place and stead, in any and all capacities, to sign such
Registration Statement on Form S-3, any and all amendments (including
post-effective amendments) and documents and instruments related thereto and any
request to accelerate the effectiveness of such Registration Statement on Form
S-3, and to file the same, with any and all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission
and The Nasdaq Stock Market, and grants unto each of said attorneys-in-fact and
agents, and substitute or substitutes, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and
about the premises, as fully to all intents and purposes as he might or could do
in person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 10th day of June, 2004.

                                  /s/ GEORGE W. BROUGHTON
                                      ---------------------------------
                        Printed Name: George W. Broughton


<PAGE>


                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned director
of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which is about to
file with the Securities and Exchange Commission, Washington, D.C., under the
provisions of the Securities Act of 1933, as amended, a Registration Statement
on Form S-3 relating to the offering from time to time by the holders thereof of
up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Robert E. Evans, Mark F. Bradley, John W. Conlon, and
Charles R. Hunsaker, or any of them, as his true and lawful attorneys-in-fact
and agents, each with full power of substitution and resubstitution, for him and
in his name, place and stead, in any and all capacities, to sign such
Registration Statement on Form S-3, any and all amendments (including
post-effective amendments) and documents and instruments related thereto and any
request to accelerate the effectiveness of such Registration Statement on Form
S-3, and to file the same, with any and all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission
and The Nasdaq Stock Market, and grants unto each of said attorneys-in-fact and
agents, and substitute or substitutes, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and
about the premises, as fully to all intents and purposes as he might or could do
in person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 10th day of June, 2004.

                                  /s/ FRANK L. CHRISTY
                                      ----------------------------------
                        Printed Name: Frank L. Christy


<PAGE>


                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned director
of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which is about to
file with the Securities and Exchange Commission, Washington, D.C., under the
provisions of the Securities Act of 1933, as amended, a Registration Statement
on Form S-3 relating to the offering from time to time by the holders thereof of
up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Robert E. Evans, Mark F. Bradley, John W. Conlon, and
Charles R. Hunsaker, or any of them, as his true and lawful attorneys-in-fact
and agents, each with full power of substitution and resubstitution, for him and
in his name, place and stead, in any and all capacities, to sign such
Registration Statement on Form S-3, any and all amendments (including
post-effective amendments) and documents and instruments related thereto and any
request to accelerate the effectiveness of such Registration Statement on Form
S-3, and to file the same, with any and all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission
and The Nasdaq Stock Market, and grants unto each of said attorneys-in-fact and
agents, and substitute or substitutes, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and
about the premises, as fully to all intents and purposes as he might or could do
in person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 10th day of June, 2004.

                                  /s/ WILFORD D. DIMIT
                                      ----------------------------------
                        Printed Name: Wilford D. Dimit


<PAGE>


                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned director
of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which is about to
file with the Securities and Exchange Commission, Washington, D.C., under the
provisions of the Securities Act of 1933, as amended, a Registration Statement
on Form S-3 relating to the offering from time to time by the holders thereof of
up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Robert E. Evans, Mark F. Bradley, John W. Conlon, and
Charles R. Hunsaker, or any of them, as his true and lawful attorneys-in-fact
and agents, each with full power of substitution and resubstitution, for him and
in his name, place and stead, in any and all capacities, to sign such
Registration Statement on Form S-3, any and all amendments (including
post-effective amendments) and documents and instruments related thereto and any
request to accelerate the effectiveness of such Registration Statement on Form
S-3, and to file the same, with any and all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission
and The Nasdaq Stock Market, and grants unto each of said attorneys-in-fact and
agents, and substitute or substitutes, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and
about the premises, as fully to all intents and purposes as he might or could do
in person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 10th day of June, 2004.

                                  /s/ PAUL T. THEISEN
                                      ----------------------------------
                        Printed Name: Paul T. Theisen


<PAGE>


                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned director
of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which is about to
file with the Securities and Exchange Commission, Washington, D.C., under the
provisions of the Securities Act of 1933, as amended, a Registration Statement
on Form S-3 relating to the offering from time to time by the holders thereof of
up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Robert E. Evans, Mark F. Bradley, John W. Conlon, and
Charles R. Hunsaker, or any of them, as his true and lawful attorneys-in-fact
and agents, each with full power of substitution and resubstitution, for him and
in his name, place and stead, in any and all capacities, to sign such
Registration Statement on Form S-3, any and all amendments (including
post-effective amendments) and documents and instruments related thereto and any
request to accelerate the effectiveness of such Registration Statement on Form
S-3, and to file the same, with any and all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission
and The Nasdaq Stock Market, and grants unto each of said attorneys-in-fact and
agents, and substitute or substitutes, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and
about the premises, as fully to all intents and purposes as he might or could do
in person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 10th day of June, 2004.

                                   /s/ JOSEPH H. WESEL
                                       ---------------------------------
                         Printed Name: Joseph H. Wesel

<PAGE>


                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned director
of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which is about to
file with the Securities and Exchange Commission, Washington, D.C., under the
provisions of the Securities Act of 1933, as amended, a Registration Statement
on Form S-3 relating to the offering from time to time by the holders thereof of
up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Robert E. Evans, Mark F. Bradley, John W. Conlon, and
Charles R. Hunsaker, or any of them, as his true and lawful attorneys-in-fact
and agents, each with full power of substitution and resubstitution, for him and
in his name, place and stead, in any and all capacities, to sign such
Registration Statement on Form S-3, any and all amendments (including
post-effective amendments) and documents and instruments related thereto and any
request to accelerate the effectiveness of such Registration Statement on Form
S-3, and to file the same, with any and all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission
and The Nasdaq Stock Market, and grants unto each of said attorneys-in-fact and
agents, and substitute or substitutes, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and
about the premises, as fully to all intents and purposes as he might or could do
in person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 10th day of June, 2004.

                                   /s/ THOMAS J. WOLF
                                       ---------------------------------
                         Printed Name: Thomas J. Wolf


<PAGE>


                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned officer
of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which is about to
file with the Securities and Exchange Commission, Washington, D.C., under the
provisions of the Securities Act of 1933, as amended, a Registration Statement
on Form S-3 relating to the offering from time to time by the holders thereof of
up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Robert E. Evans, Mark F. Bradley and Charles R.
Hunsaker, or any of them, as his true and lawful attorneys-in-fact and agents,
each with full power of substitution and resubstitution, for him and in his
name, place and stead, in any and all capacities, to sign such Registration
Statement on Form S-3, any and all amendments (including post-effective
amendments) and documents and instruments related thereto and any request to
accelerate the effectiveness of such Registration Statement on Form S-3, and to
file the same, with any and all exhibits thereto, and other documents in
connection therewith, with the Securities and Exchange Commission and The Nasdaq
Stock Market, and grants unto each of said attorneys-in-fact and agents, and
substitute or substitutes, full power and authority to do and perform each and
every act and thing requisite and necessary to be done in and about the
premises, as fully to all intents and purposes as he might or could do in
person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 14th day of June, 2004.

                                   /s/ JOHN W. CONLON
                                       ---------------------------------
                         Printed Name: John W. Conlon


<PAGE>


                                POWER OF ATTORNEY


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned officer
of Peoples Bancorp Inc., an Ohio corporation (the "Company"), which is about to
file with the Securities and Exchange Commission, Washington, D.C., under the
provisions of the Securities Act of 1933, as amended, a Registration Statement
on Form S-3 relating to the offering from time to time by the holders thereof of
up to 306,582 common shares, without par value, of the Company hereby
constitutes and appoints Robert E. Evans, Mark F. Bradley, John W. Conlon, and
Charles R. Hunsaker, or any of them, as his true and lawful attorneys-in-fact
and agents, each with full power of substitution and resubstitution, for him and
in his name, place and stead, in any and all capacities, to sign such
Registration Statement on Form S-3, any and all amendments (including
post-effective amendments) and documents and instruments related thereto and any
request to accelerate the effectiveness of such Registration Statement on Form
S-3, and to file the same, with any and all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission
and The Nasdaq Stock Market, and grants unto each of said attorneys-in-fact and
agents, and substitute or substitutes, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and
about the premises, as fully to all intents and purposes as he might or could do
in person, and hereby ratifies and confirms all things that each of said
attorneys-in-fact and agents, or any of them or his or their substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                  IN WITNESS WHEREOF, the undersigned has hereunto set his hand
this 11th day of June, 2004.

                                   /s/ DONALD J. LANDERS, JR.
                                       ---------------------------------
                        Printed Name:  Donald J. Landers, Jr.


